Program:

1
2 6
3 7 10
4 8 11 13
5 9 12 14 15

• Program:

  public class NumberPattern7
  {
      public static void main(String[] args)
      {
          for(int i=1; i<=5; i++)
          {
              int num = i; // Start number for each row
              
              for(int j=1; j<=i; j++)
              {
                  System.out.print(num+" ");
                  num = num + (5 - j); // Increase the number by (n - j)
              }
              System.out.println();
          }
      }
  }